Fix dropdown menu

* temp fix for dropdown menu flickering

src/cljs/commiteth/core.cljs

@@ -37,7 +37,7 @@
 
 (defn user-dropdown [user items]
   (let [menu (if @user-dropdown-open?
-                  [:div.ui.menu.transition.visible {:tab-index 0}]
+                  [:div.ui.menu.transition.visible]
                   [:div.ui.menu.transition.hidden])
         avatar-url (:avatar_url user)]
     [:div.ui.left.item.dropdown

src/less/style.less

@@ -160,6 +160,8 @@
     border-radius: 8px;
     border: none;
     padding: .5em;
+    z-index: 999;
+    transform: translate(100%, -100%);
     .item>a {
         color: #fff;
         pointer: default;